I am just starting day 11 of my first 7 day sensor [as of late Saturday night]. There are definitely more gaps in the information than there were in the beginning. I have come to despise the question mark. For those that don’t wear the DexCom – when the sensor isn’t reading you see ??? instead of a blood glucose value. According to the instruction manual, when you get the ???, the best thing you can do it nothing. “Wait. ??? usually resolves itself within several minutes or up to several hours.” [emphasis mine] I have had a couple of “several hour” gaps in information, and just as I am about to pull the sensor it starts reading again.
Note: That is not my site in the corner of the picture. You should always inject insulin at least 3 inches away from your sensor. I wear the Sure-T infusion set, and that is just the secondary disconnect site.
I have a feeling the adhesive on this sensor is going to give out before the sensor actually does. I don’t have any medical tape, so I had to improvise when things really started to get loose this morning. Do you guys just use over-the-counter tape or something different to hold down the edges?
So do I think it is worth it to wear a CGM and fight all the related battles? 100% yes. After experiencing overnight lows at the same time the first two nights, I was able to easily adjust my basal rates. Because I was going to bed in range and waking up in range, I had no idea anything was going on during the night. I live alone so not waking up while being in the 50s is a scary situation. I also noticed that was having a late afternoon spike in numbers so I adjusted that basal as well. Too low at 3 am – too high at 3 pm.
Here’s another great example – I was chatting on TokBox the other night after a great Cuban dinner of unknown carb count. I was telling them how much I love my CGM and how accurate it is. When I checked the receiver, I noticed that while it said I was 142 mg/dL it was also showing a “straight down” arrow. This means my blood glucose level was dropping at a rate of about 2-3 mg/dL. I checked with my meter and found that I was 97 mg/dL. Considering the CGM is about 20 minutes behind real-time numbers I would say that is incredibly accurate. I grabbed a little juice box and evened out at about 100 on the CGM. Preventing lows (and highs) is reason enough to make the CGM battle worth it!
I am still adjusting to “wearing” the receiver. Girls, where do you put your receiver? Even when I am wearing pants with pockets, it doesn’t fit right. I already have my pump in one pocket so if I put the receiver in the other, the lumps and bumps are just not the look I am going for. Do you just carry it in your purse and hope it stays in range?
Speaking of delivering details, I would really like to look at my DexCom information a little closer but alas, I may have found the one and only downside of owning a MacBook. I know I can run Windows on my Mac (Bootcamp or something?); but can someone explain to me exactly what I need to get?